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(Nb Model.)

`G, L. KITSON.

` DEVICE BOR TRANSMITTING POWER.

No. 305,931. Patented Sept. 30, 1884.

N4 PETERS. Pvwwmlmgnpmr. Washington. Dv i;v

UNITED STATES GEORGE L. KITSON, OF VATERBURY, CONN., ASSXGNOR TO THE BENEDICT du BUBNHAM MANUFACTURING COMPANY, OF SAME PLACE.

DEViCE FOR TRANSMiTTING POWER.

SPECFIGAIION` forming part of Letters Patent No1 305,931,' dated September 30, 1884.

Application filed August il, 1F84. (No model.)

To fI-ZZ 1117211712, it T11/mf fion/:ern:

Be it known that-I, Geenen L. Kirson, of

y Tvlaterhury, in the county of NewHaven and State of Connecticut, have invented 'a new Ims provenient in Mechanical Devices for Transniitting Power; and l do hereby declare the iellowing, when taken in connection with accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description ofthe same, and which said drawings constitute part of this specification, and represent, iiif Figure l, a top view showing the two disks on their respective shafts; Fig. 2, ahorizontal 15 section through the disksg'Fig. 3, a face view of the one disk, D, showingthe concentric flange d and the concentric groove f on the face of the disk at its junction' with the ilange; Figs.l 4 and 5, modications.

This invention relates to a device for applying power in the direction of a pullw-as upon a cable, endless band, or other device through which or to which powerinay be transmitted or appliedthe object being to produceI a revolving device which shall iirinly grip the' cable, band,` or whatever it may be, and so that the said cable, band, or whatever it may be will advance according to the revolution of the device 5 and the invention consists in a upon axes slightly inclined to each other, and so that the adjacent faces of the disks in revolving gradually approach each other' from one point toward the diametrically-opposite point, a concentric cylindrical bearing surface between said disks upon which the thingv ranged in suitable bearings,`a c and b ZJ, their adjacent ends concentric with each other but the axis of one slightlyinclined to the axis of the other.

On the one shaft, Anis a disk, C, and on the shaft 1B is a like disk, l), secured to the pair of concentric revolving disks arranged A represents one shaft, and B the other, ary respective shafts, and so as to partake of the revolution thereof. Between the said disks is a cylindrical surface, d. This cylindrical surface is best produced by making a flange 55 upon the face of the one disk, D, and constructing the oth er disk, C, with a corresponding recess, c, into which the cylindrical flange D inay entend. Outside the cylindrical surface l the faces of the disks are inclined out- 6o ward and from each other, so as to produce substantially a V-shaped space between the two disks. ln the face'of each disk and around the cylindrical surface is a recess, f. Becausel of the inclination of the axes one to the other 65 the adjacent faces of the disks gradually approach each other from one point to the danietrically-opposite point, and as seen in Fi gs.

l and At their nea-rest point of approach the two reccssesff correspond substantially to the 7o transverse sect-ion of the thing to be gripped, and, as shown, this is cylindrical, as for gripping a wire or cable. The two disks should be coupled, so that the power imparted to the A one will be communicated to the other, and, 7 5 as here represented, this is done by slots h in the edge of the flange d, with corresponding screws or studs, vfi., in the other disk, to enter said slots, and so that power applied to the shaft A will, througlrsaid screws and slots, be So communicated to the other shaft. As here represented, power is applied through a gear,

E, on the sha-ft A, but may bc otherwise applied.

To illustrate a use for this invention, wewill 85 suppose it to be to transmit power through au endless rope or cable. The cable is passed between the two disks, and into the recesses ff, there standing substantially as it would iu a grooved pulley, with this difference, that 9o whereas in a grooved pulley dependence for transmitting power is based entirely upon frictional contact of the endless cable in the groove of the pulley, in this device the faces of the disks are, say, so close together as to iinpinge g5 upon the cable at the top, say, as at Z. From that point on to one-fourth its circumference or point m, the width between the grooves at the cylindrical surface is gradually diminishing, and the 'grip upon the cable is therefore roo increasing from the point Z to the point m, and this grip will be sufficient to hold the cable and force it to more with the revolving disks. From the point m to the second quarter, a, the groove is gradually opening, and will fully release the cable at that point. By the use of this device, therefore. power may be trans; mitted through a cable, notwithstanding it may be very loose, and by no possibility can it slip from its grip. The power communicated, therefore, is of the most positive character.

In general practice it will be better that at the opposite point to which the power is to be communicated a like gripping device shall be applied to the shaft, and so that the pull of the cable upon that gripping device will force its corresponding revolution.

Another illustration of the use of this device may be as in a hoisting mechanism. in which the rope or cable passes over the cylindrical portion between the disks, and is gripped in like manner vto lift a weight sus- -pended thereon, or, with the disks turned in the opposite direction, to lower such weight.

One other illustration of the use of this invention will be sufficient to show its adapta' tion to various purposes, ,and that is as a feeding device for wire or cable which is drawn through a machine in which the cable is formed, covered, or otherwise treated, and where power is required to so draw the cable or wire through the machine. In such use the first end of the wire is introduced upon the cylindrical surface, and at the grooves at a point where the grooves will iinpinge upon the surface and so as to make a grip thereon. Then the end will be taken, with the revolving disks, around to near the opposite point, from whence it will escape, and may be taken therefrom to a reel or to other machines, as the case may be, this device insuring aconstant and steady pull upon the wire or cable.

While I prefer to make the cylindrical surface as a part of one of the disks, it may be made detached from either, as seen in Fig. 4, the two disks recessed alike, the flange d extending into both recesses, and tted therein,- and may be coupled with either one or both of' the shafis, as shown in Fig. 4.

Vhile I prefer to construct the faces of the disk, at their junction with the cy1indrical surface, with the concentric groove, it will be evident that a strong grip may be produced by constructing that surface without the groove, as seen in Fig. 5. I therefore do not wish to be understood as limiting my invent-ion to the groove.

I claiml. The combination of a pair of concentric revolving disks arranged upon axes slightly inclined to each other, and so that the adjacent faces of the disks in revolving gradually approach each other from one point toward the diametrically-opposite point, with a concentric bearing-surface between said disks, substantially as described, and whereby the cable or whatever it :may be running upon said cylindrical surface will be gradually gripped by said disks, and so as to partake of the revolution of the disks, as described.

2. The combination of a pair of concentric revolving disks arranged upon axes slightly inclined to each other, and so that the adjacent faces of the disks in revolving gradually approach each other from one point toward the diametrically-opposite point, the concentric cylindrical bearing-surface between said disks, thesaid disks at the said cylindrical bearingsurfaces constructed with a concentric groove, substantially as and for the purpose described.

3. The combination of a pair of concentric revolving disks arranged upon aXes slightly inclined to each other, and so that the adja- `cent faces ofthe disks in revolving gradually approach each other from one point toward the diametrically-opposite point, the one disk constructed with a concentric flange upon its face, the other disk with a concentric recess corresponding to said concentric flange, and into which said concentric flange will enter, substantially as described.

4. The combination of a pair/of concentric revolving disks arranged upon axes slightly inclined to each other, and so that the adja- 1 centfaces ofthe disks in revolving gradually approach each other from onepoint toward the diametrically-opposite point, one of said disks constructed with a concentric flange upon its face, the other with a correspondingly concentric recess into which the said iiange will enter, each of said disks constructed with a concentric groove at the junctiim ofthe face with the said concentric fiange, substantially as and for the purpose described.

GEORGE L. KITSON. Vitnesses:

JOHN E. EARLn, LILLIAN D. KELsnY.

IOO 

